#!/usr/bin/env python
# 
# Copyright (c) 2011, Willow Garage, Inc.
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the Willow Garage, Inc. nor the names of its
#       contributors may be used to endorse or promote products derived from
#       this software without specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# 
import ecto
from ecto.opts import scheduler_options, run_plasm
from ecto import Constant
from ecto.ecto_test import Multiply, Printer
import argparse

parser = argparse.ArgumentParser(description='My awesome program thing.')

#our local command line args.
parser.add_argument('--value', metavar='VALUE', dest='value',
                    type=float, default=3, help='A value to use a constant.')
parser.add_argument('--factor', metavar='FACTOR', dest='factor',
                    type=float, default=5, help='The factor to multiply the constant with.')

#add ecto scheduler args.
scheduler_options(parser)
options = parser.parse_args()

c = Constant(value=options.value)
m = Multiply(factor=options.factor)
pr = Printer()
plasm = ecto.Plasm()
plasm.connect(c[:] >> m[:],
              m[:] >> pr[:]
              )
#run the scheduler given the options, plasm, and our local variables.
run_plasm(options, plasm, locals=vars())


